[Answered] What type of nebula is the Horsehead? a. Primitive b. Bright emission c. Bright reflection d. ...

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Author Question: What type of nebula is the Horsehead? a. Primitive b. Bright emission c. Bright reflection d. ... (Read 74 times)

naturalchemist

Hero Member
Posts: 542

on: Jul 28, 2018

What type of nebula is the Horsehead?
a. Primitive
b. Bright emission
c. Bright reflection
d. Dark

Question 2

The unit called the hertz (Hz) is equivalent to
a. 1/s only.
b. a reciprocal second only.
c. s-1 only.
d. all of these.

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adammoses97

Sr. Member
Posts: 337

Reply #1 on: Jul 28, 2018

Answer to Question 1

d

Answer to Question 2

d

naturalchemist

Hero Member
Posts: 542

Reply #2 on: Jul 28, 2018

adammoses97

Sr. Member
Posts: 337

Reply #3 on: Jul 28, 2018

You're welcome

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